Colored nicknames: Servers can deliver nickname colors to color-aware clients via the new HL_FIELD_USER_COLOR (0x0500) field on user-change broadcasts, and optionally honor colors clients set themselves (TranSetClientUserInfo, 304). New ColoredNicknames: block in config.yaml (and ColoredNicknames* plist keys): Delivery (off / auto / always), HonorClientColors, DefaultAdminColor, DefaultGuestColor. Per-account Color overrides the defaults. GUI: new Colored Nicknames settings section and a color row in the Account Editor.
Auto-ban for repeat offenders: An IP that trips the per-IP rate limiter 10 times within 5 minutes is added to the persistent banlist and dropped at accept, before any read or TLS handshake. Controlled by the new AutoBanEnabled setting (default on), with a matching GUI checkbox; the Bans tab gains a Refresh button to show bans written by the running server.
Chat history settings in the GUI: All nine ChatHistory* keys are now editable and round-trip through GUI saves (previously a GUI save silently dropped them), including a one-click Generate Key… for encryption at rest.
